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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnsafeStoreNode.java @ 11959:23ccaa863eda

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made CodeCacheProvider independent of MetaAccessProvider (GRAAL-511)
author Doug Simon <doug.simon@oracle.com>
date Thu, 10 Oct 2013 16:14:55 +0200
parents 88fb9cba8751
children 0fc653a9e019
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.nodes.extended;
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24
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25 import static com.oracle.graal.graph.UnsafeAccess.*;
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26
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.java.*;
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30 import com.oracle.graal.nodes.spi.*;
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31 import com.oracle.graal.nodes.type.*;
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32
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33 /**
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34 * Store of a value at a location specified as an offset relative to an object. No null check is
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35 * performed before the store.
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36 */
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37 public class UnsafeStoreNode extends UnsafeAccessNode implements StateSplit, Lowerable, Virtualizable, MemoryCheckpoint.Single {
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38
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39 @Input private ValueNode value;
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40 @Input(notDataflow = true) private FrameState stateAfter;
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41
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42 public UnsafeStoreNode(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind) {
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43 this(object, offset, value, accessKind, LocationIdentity.ANY_LOCATION);
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44 }
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45
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46 public UnsafeStoreNode(ValueNode object, ValueNode offset, ValueNode value, Kind accessKind, LocationIdentity locationIdentity) {
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47 super(StampFactory.forVoid(), object, offset, accessKind, locationIdentity);
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48 assert accessKind != Kind.Void && accessKind != Kind.Illegal;
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49 this.value = value;
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50 }
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51
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52 public FrameState stateAfter() {
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53 return stateAfter;
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54 }
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55
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56 public void setStateAfter(FrameState x) {
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57 assert x == null || x.isAlive() : "frame state must be in a graph";
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58 updateUsages(stateAfter, x);
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59 stateAfter = x;
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60 }
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61
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62 public boolean hasSideEffect() {
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63 return true;
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64 }
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65
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66 public ValueNode value() {
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67 return value;
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68 }
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69
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70 @Override
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71 public void lower(LoweringTool tool) {
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72 tool.getCodeCache().lower(this, tool);
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73 }
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74
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75 @Override
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76 public void virtualize(VirtualizerTool tool) {
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77 State state = tool.getObjectState(object());
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78 if (state != null && state.getState() == EscapeState.Virtual) {
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79 ValueNode indexValue = tool.getReplacedValue(offset());
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80 if (indexValue.isConstant()) {
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81 long offset = indexValue.asConstant().asLong();
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82 int entryIndex = state.getVirtualObject().entryIndexForOffset(offset);
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83 if (entryIndex != -1 && state.getVirtualObject().entryKind(entryIndex) == accessKind()) {
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84 tool.setVirtualEntry(state, entryIndex, value());
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85 tool.delete();
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86 }
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87 }
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88 }
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89 }
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90
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91 @Override
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92 protected ValueNode cloneAsFieldAccess(ResolvedJavaField field) {
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93 StoreFieldNode storeFieldNode = graph().add(new StoreFieldNode(object(), field, value()));
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94 storeFieldNode.setStateAfter(stateAfter());
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95 return storeFieldNode;
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96 }
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97
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98 public FrameState getState() {
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99 return stateAfter;
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100 }
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101
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102 // specialized on value type until boxing/unboxing is sorted out in intrinsification
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103
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104 @SuppressWarnings("unused")
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105 @NodeIntrinsic
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106 public static void store(Object object, long offset, Object value, @ConstantNodeParameter Kind kind) {
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107 unsafe.putObject(object, offset, value);
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108 }
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109
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110 @SuppressWarnings("unused")
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111 @NodeIntrinsic
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112 public static void store(Object object, long offset, boolean value, @ConstantNodeParameter Kind kind) {
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113 unsafe.putBoolean(object, offset, value);
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114 }
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115
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116 @SuppressWarnings("unused")
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117 @NodeIntrinsic
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118 public static void store(Object object, long offset, byte value, @ConstantNodeParameter Kind kind) {
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119 unsafe.putByte(object, offset, value);
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120 }
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121
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122 @SuppressWarnings("unused")
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123 @NodeIntrinsic
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124 public static void store(Object object, long offset, char value, @ConstantNodeParameter Kind kind) {
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125 unsafe.putChar(object, offset, value);
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126 }
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127
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128 @SuppressWarnings("unused")
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129 @NodeIntrinsic
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130 public static void store(Object object, long offset, double value, @ConstantNodeParameter Kind kind) {
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131 unsafe.putDouble(object, offset, value);
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132 }
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133
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134 @SuppressWarnings("unused")
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135 @NodeIntrinsic
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136 public static void store(Object object, long offset, float value, @ConstantNodeParameter Kind kind) {
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137 unsafe.putFloat(object, offset, value);
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138 }
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139
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140 @SuppressWarnings("unused")
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141 @NodeIntrinsic
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142 public static void store(Object object, long offset, int value, @ConstantNodeParameter Kind kind) {
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143 unsafe.putInt(object, offset, value);
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144 }
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145
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146 @SuppressWarnings("unused")
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147 @NodeIntrinsic
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148 public static void store(Object object, long offset, long value, @ConstantNodeParameter Kind kind) {
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149 unsafe.putLong(object, offset, value);
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150 }
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151
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152 @SuppressWarnings("unused")
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153 @NodeIntrinsic
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154 public static void store(Object object, long offset, short value, @ConstantNodeParameter Kind kind) {
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155 unsafe.putShort(object, offset, value);
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156 }
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157 }